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Keflavik Intl

$371+ Cheap flights from Reagan-National (DCA) to Keflavik Intl (KEF)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 3/19. Fares are subject to change and may not be available on all flights or dates of travel.
DCA — KEF
Feb 27 — Mar 61
Fri 2/27
Fri 3/6
1 adult, Economy
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Cheap flight deals from Reagan-National to Keflavik Intl

Cheapest flights from Reagan-National to Keflavik Intl
Explore the most affordable flight options available from Reagan-National to Keflavik Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 28, 2026.

This United Airlines deal was found by Cheapflights users on 1/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/186:30 am
DCA
-
KEF
1 stop22h 00m
United Airlines
Tue 8/259:15 am
KEF
-
DCA
1 stop29h 03m
United Airlines
Deal found 1/26$535
This Delta deal was found by Cheapflights users on 1/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/1111:00 am
DCA
-
KEF
1 stop18h 30m
Delta
Sat 4/1811:25 am
KEF
-
DCA
1 stop10h 05m
Delta
Deal found 1/26$539
This Delta deal was found by Cheapflights users on 1/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/89:00 am
DCA
-
KEF
2 stops20h 30m
Delta
Wed 4/1511:25 am
KEF
-
DCA
2 stops16h 16m
Delta
Deal found 1/26$544
This FlightHub deal was found by Cheapflights users on 1/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/1812:55 pm
DCA
-
KEF
2 stops39h 00m
Air Canada
Tue 8/259:15 am
KEF
-
DCA
1 stop16h 33m
Air Canada
Deal found 1/26$546
This United Airlines deal was found by Cheapflights users on 1/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/156:00 pm
DCA
-
KEF
1 stop9h 00m
United Airlines
Sat 8/229:15 am
KEF
-
DCA
1 stop10h 23m
United Airlines
Deal found 1/27$548
This Air Canada deal was found by Cheapflights users on 1/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/1512:55 pm
DCA
-
KEF
2 stops15h 50m
Air Canada
Sat 8/229:15 am
KEF
-
DCA
1 stop10h 23m
Air Canada
Deal found 1/27$551
This Delta deal was found by Cheapflights users on 1/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/305:00 pm
DCA
-
KEF
1 stop12h 30m
Delta
Thu 5/711:25 am
KEF
-
DCA
1 stop15h 47m
Delta
Deal found 1/27$554
This Delta deal was found by Cheapflights users on 1/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/76:00 pm
DCA
-
KEF
2 stops35h 30m
Delta
Tue 4/1411:25 am
KEF
-
DCA
2 stops14h 09m
Delta
Deal found 1/26$555
This KLM deal was found by Cheapflights users on 1/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/3011:00 am
DCA
-
KEF
1 stop18h 30m
Multiple Airlines
Tue 5/511:25 am
KEF
-
DCA
2 stops15h 25m
Multiple Airlines
Deal found 1/26$558
This KLM deal was found by Cheapflights users on 1/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/302:34 pm
DCA
-
KEF
2 stops14h 56m
Multiple Airlines
Wed 5/611:25 am
KEF
-
DCA
1 stop15h 18m
Multiple Airlines
Deal found 1/27$559
This KLM deal was found by Cheapflights users on 1/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/196:00 am
DCA
-
KEF
1 stop23h 30m
Multiple Airlines
Mon 5/411:25 am
KEF
-
DCA
2 stops14h 05m
Multiple Airlines
Deal found 1/26$564

Find flight deals from Reagan-National to Keflavik Intl

Discover tips and strategies to find the most affordable flight options for your journey from Reagan-National (DCA) to Keflavik Intl (KEF). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated January 28, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$539
(Delta)

One-way from

$371
(Kiwi.com)

Popular in

December

Cheapest in

October

Average price

$463
Provider with most accurate pricing for Washington, D.C. Reagan-National-Reykjavik Keflavik Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Washington, D.C. Reagan-National-Reykjavik Keflavik Intl flights.
Search Deals
From Washington, D.C. Reagan-National to Reykjavik Keflavik Intl
Search Deals
One-way flight from Washington, D.C. Reagan-National to Reykjavik Keflavik Intl
Search Deals
Highest demand for flights based on searches. 7% potential increase in price ($40 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($18 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Reagan-National to Keflavik Intl that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated January 28, 2026.
Use the filters below to find and compare flights from Washington, D.C. Reagan-National Airport to Reykjavik Keflavik Intl Airport that are best for you.

Fly from

Reagan-National

Fly to

Keflavik Intl

Route

Depart

Return

Price

Washington, D.C.Reykjavik

DCA - KEF

DCAKEF

Washington, D.C. Reagan-National

Sun 4/12

5:09 pm-9:30 am

1 stop12h 21m

Reykjavik Keflavik Intl

Sun 4/26

11:25 am-5:30 pm

1 stop10h 05m

$539

Washington, D.C.Reykjavik

DCA - KEF

DCAKEF

Washington, D.C. Reagan-National

Sat 4/11

11:00 am-9:30 am

1 stop18h 30m

Reykjavik Keflavik Intl

Sat 4/18

11:25 am-9:34 pm

2 stops14h 09m

$544

Washington, D.C.Reykjavik

DCA - KEF

DCAKEF

Washington, D.C. Reagan-National

Fri 5/8

5:00 pm-9:30 am

1 stop12h 30m

Reykjavik Keflavik Intl

Mon 5/11

9:30 am-10:12 pm

1 stop16h 42m

$554

Washington, D.C.Reykjavik

DCA - KEF

DCAKEF

Washington, D.C. Reagan-National

Thu 4/30

12:25 pm-9:30 am

2 stops17h 05m

Reykjavik Keflavik Intl

Sun 5/3

11:25 am-10:41 pm

1 stop15h 16m

$558

Washington, D.C.Reykjavik

DCA - KEF

DCAKEF

Washington, D.C. Reagan-National

Mon 5/18

6:30 am-8:30 am

1 stop22h 00m

Reykjavik Keflavik Intl

Tue 6/2

10:00 am-8:53 am

1 stop26h 53m

$600

Washington, D.C.Reykjavik

DCA - KEF

DCAKEF

Washington, D.C. Reagan-National

Sun 5/17

12:59 pm-6:20 am

1 stop13h 21m

Reykjavik Keflavik Intl

Fri 5/29

11:25 am-6:11 pm

1 stop10h 46m

$614

Washington, D.C.Reykjavik

DCA - KEF

DCAKEF

Washington, D.C. Reagan-National

Tue 5/19

11:00 am-9:30 am

1 stop18h 30m

Reykjavik Keflavik Intl

Sat 5/30

11:25 am-11:12 pm

1 stop15h 47m

$614

Washington, D.C.Reykjavik

DCA - KEF

DCAKEF

Washington, D.C. Reagan-National

Sun 5/17

12:59 pm-6:20 am

1 stop13h 21m

Reykjavik Keflavik Intl

Fri 5/29

9:30 am-9:19 pm

2 stops15h 49m

$619

Washington, D.C.Reykjavik

DCA - KEF

DCAKEF

Washington, D.C. Reagan-National

Thu 3/19

11:00 am-10:45 am

2 stops19h 45m

$371

Washington, D.C.Reykjavik

DCA - KEF

DCAKEF

Washington, D.C. Reagan-National

Fri 2/27

11:06 am-10:40 am

2 stops18h 34m

$387

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/25

Showing 1-10 of 18 results
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Compare providers for flights from Reagan-National to Keflavik Intl

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Reagan-National to Keflavik Intl in January.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy2 starsTrust Score*2 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Washington, D.C. Reagan-National Airport-Reykjavik Keflavik Intl Airport flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Washington, D.C. Reagan-National Airport-Reykjavik Keflavik Intl Airport flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Washington, D.C. Reagan-National Airport-Reykjavik Keflavik Intl Airport flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Washington, D.C. Reagan-National Airport-Reykjavik Keflavik Intl Airport flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Washington, D.C. Reagan-National Airport-Reykjavik Keflavik Intl Airport flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Reagan-National to Keflavik Intl

Have a flexible travel schedule? Discover the best time to fly to Keflavik Intl from Reagan-National with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Related info for your journey

Find useful and relevant information for your journey from Reagan-National to Keflavik Intl. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Washington, D.C. Reagan-National Airport to Reykjavik Keflavik Intl Airport?

    Airlines like Delta, KLM, and Virgin Atlantic fly from Washington, D.C. Reagan-National Airport to Reykjavik Keflavik Intl Airport in about 12h 21m. The time it takes to get you to your destination can typically vary by up to 6h 09m. Washington, D.C. Reagan-National Airport and Reykjavik Keflavik Intl Airport are separated by a distance of 2784 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • Can I find deals for flights from Reagan-National to Keflavik Intl that include hotel bookings?

    Yes. In addition to deals on Reagan-National to Keflavik Intl flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Reagan-National to Keflavik Intl?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Reagan-National to Keflavik Intl.

  • Can I find deals for business class flights from Reagan-National to Keflavik Intl?

    Yes. Cheapflights offers flight deals from Reagan-National to Keflavik Intl by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

Traveling to a place near Reykjavik Keflavik Intl Airport?

Book flights to Reykjavik Keflavik Intl Airport if you plan to visit one of these locations
Keflavik
Hveragerdi

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